About Network Extension

You can bridge networks between HCX Manager activated data centers with HCX Network Extension.

With VMware HCX Network Extension (HCX-NE), you can extend the virtual machine (VM) networks to an HCX remote site. Virtual machines that are migrated or created on the extended segment at the remote site behave as if on the same L2 segment as virtual machines in the source environment. With Network Extension, the default gateway for the extended network is only connected at the source site. Traffic from virtual machines in remote sites that must be routed to a different L3 network flow through the source site gateway.

Using Network Extension with VMware HCX Migration you can:

• Retain the IP and the MAC addresses of the VM, and honor existing network policies.

• Extend VLAN-tagged networks from a VMware vSphere Distributed Switch.

• Extend NSX segments.